12099646 has 16 divisors (see below), whose sum is σ = 19636848. Its totient is φ = 5558400.

The previous prime is 12099643. The next prime is 12099691. The reversal of 12099646 is 64699021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12099643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5301 + ... + 7231.

It is an arithmetic number, because the mean of its divisors is an integer number (1227303).

Almost surely, 2^12099646 is an apocalyptic number.

12099646 is a deficient number, since it is larger than the sum of its proper divisors (7537202).

12099646 is a wasteful number, since it uses less digits than its factorization.

12099646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 12099646 is about 3478.4545418907. The cubic root of 12099646 is about 229.5748035942.

The spelling of 12099646 in words is "twelve million, ninety-nine thousand, six hundred forty-six".